Method of fabricating high birefringence fibers

Details Method of fabricating high birefringence fibers Method of fabricating high birefringence fibers

1983-07-22

1985-07-16

Bashore, S. Leon

Glass manufacturing

Processes

Forming product or preform from molten glass

65 32, 65102, C03B 37075

Patent

active

045294267

ABSTRACT:
The present invention relates to a technique for producing polarization-preserving and single polarization optical fibers. As disclosed, high birefringence is introduced into the preform by deforming the fiber preform such that a cladding layer becomes flat and highly conformable, while the core remains hard and substantially round. In particular, a cladding layer with a relatively low melting point is utilized such that when the preform is heated the cladding becomes liquified while the core remains solid. The preform may then be deformed so that the cladding layer is substantially flattened. Standard drawing techniques may then be utilized to form polarization-preserving fibers and single polarization fibers from the preform.

REFERENCES:
patent: 3802859 (1974-04-01), Schenkels
patent: 3982916 (1976-09-01), Miller
patent: 4106847 (1978-08-01), Arnaud
patent: 4184859 (1980-01-01), Maklad
patent: 4274854 (1981-06-01), Pleibel et al.
patent: 4360371 (1982-11-01), Blankenship et al.
patent: 4426129 (1984-01-01), Matsumura et al.

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